A Mechanical Pacemaker Is Implanted into a Patient with Irregular

A mechanical pacemaker is implanted into a patient with irregular heart beats. If the pacemaker has just one electrode that can stimulate just one spot on the heart, where should that electrode be placed?

A) in the wall between the left ventricle and the right ventricle
B) in the wall between the left atrium and the right atrium
C) on the sinoatrial node
D) on the atrioventricular node

Correct Answer:

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